Classify the input using one of these labels: neutral, positive, and negative. @USAirways - Janet &amp; my DEN-PHL  flight Cancelled Flightled Saturday, USAIR rescheduled automatically &amp; notified us by email at no additional cost.
system
Classify the input using one of these labels: neutral, positive, and negative. @USAirways - Janet &amp; my DEN-PHL  flight Cancelled Flightled Saturday, USAIR rescheduled automatically &amp; notified us by email at no additional cost.
user
positive
assistant
system
Classify the input using one of these labels: neutral, positive, and negative. @USAirways - Janet &amp; my DEN-PHL  flight Cancelled Flightled Saturday, USAIR rescheduled automatically &amp; notified us by email at no additional cost.
user
neutral
assistant